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Finding the Fourth Proportional to 448,581.51, 672,318.20 and 384,954.39

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Solution

The fourth proportional to 448,581.51, 672,318.20 and 384,954.39 is: 576,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,581.51 : 672,318.20 = 384,954.39 : x
  2. Step 2: Convert to fraction form
    448,581.51/672,318.20 = 384,954.39/x
  3. Step 3: Cross multiply
    448,581.51x = 672,318.20 × 384,954.39
  4. Step 4: Simplify right side
    448,581.51x = 258,811,840,642.13
  5. Step 5: Solve for x
    x = 258,811,840,642.13/448,581.51
  6. Step 6: Final answer
    x = 576,956.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.